Radio Network Evolution 4G to 5G

Transcription

1 Security Level: Radio Network Evolution 4G to 5G Emerging Use Case(s) and RAN Deployment Topologies in the context of RAN Evolution Requirements towards a 5G System Presentation at Wireless@KTH, Stockholm, by Sören Andersson, Huawei Technologies Sweden AB HUAWEI TECHNOLOGIES SWEDEN AB

2 Outline Cost Efficient Network Densification and Capacity Growth towards 5G The main Challenges and Requirements Competitors and 3GPP A few observations Cost vs Performance TCO-Analysis Densification, yes! But, first starting off from a different angle mmwave Early-Adopters RAN Energy Consumption towards 5G Networks Initial Results and Indications HUAWEI TECHNOLOGIES SWEDEN AB Huawei Confidentiality 2

3 Cost-Efficient Network Densification and Capacity Growth towards 5G FACTS: Mobile traffic will grow significantly the coming years ARPU can be assumed to stay flat QoE requirements will increase from today s 1Mbps to 10/25/50+ Mbps New services will emerge once 5G-capabilities are becoming available IoT, V2X, WTTx 4K/8K, AR, VR, CONCLUSIONS: Operators must be provided with RAN/BTS Solution Alternatives offering both a low CAPEX and a very low OPEX Cost per transported bit must be significantly lowered Preferably exceeding the corresponding numbers for traffic growth RAN/BTS solutions and topologies offering very high network capacity/km 2 must be devised Energy Efficiency will become of paramount importance SON-capabilities will become a necessity in future RAN-deployments Enabling the number of deployed nodes to become much higher than in today s RAN s HUAWEI TECHNOLOGIES SWEDEN AB Huawei Confidentiality 3

4 Competitors and 3GPP Based on off-the-shelf ad chipsets, with a modified MAC-layer Facebook trials: 3GPP: NR frame structure to support FDD, TDD, DL, UL, sidelink, access, backhaul, relay, standalone and non-standalone operation in licensed band, licensed-assisted access in unlicensed band. X-haul : node-type possibilities ~3GPP BH->Macro BH - Mesh FH UDN s Broadcom: has a similar solution, including HotSpot Access functionality(lte/wifi) in their routing/aggregation nodes Many similarities! HUAWEI TECHNOLOGIES SWEDEN AB Huawei Confidentiality 4 except for the notable absence of macro-sites, and that 3GPP is a bit late

5 Cost vs Performance TCO-Analysis Solution Alternatives: WTTx++ Deployed by a 5G Mobile Operator Main Scenario Parameter Variations: BTS -- access side: Sub-6GHz, bandwidth MHz AntConfig: M-MIMO BTS access & backhaul side: ~30GHz, bandwidth TBD AntConfig: 32,64, 128(?) LEAN access & front/backhaul side: ~30GHz, bandwidth TBD AntConfig: 32, 64, 128(?) HAN access & front/backhaul side: ~30GHz, bandwidth TBD HAN -- access side: AntConfig: 32, 64, 128(?) ~3.5-6 GHz, bandwidth MHz x Y (Y=1-5?)) AntConfig: 1,2,4,8 ~30GHz, bandwidth MHz(?) AntConfig: 32, 64, 128(?) (s/m)cpe -- backhaul side (indoors/outdoors/mobile?): ~3.5-6GHz, bandwidth MHz (100MHz x Y (Y=1-5?)) AntConfig: 1,2,4,8 (8, 16) ~30GHz, bandwidth 100MHz x Y (Y=1-10?) AntConfig: 8,16,32 (32, 64)? (s/m)cpe -- service-delivery side (indoors/outdoors): Ethernet-connectors? WiFi? 2.4/5/60GHz? These should probably be rather capable routing/aggregation nodes, serving many HAN- & CPE sub-nodes A Few Initial Questions: HDMI? E t c, - e What t c, are reasonable ISD s for the macro network? Making Cost-per-Bit, PC & TCO-eqn s look good? - In realistic deployment cases, how many LEAN-nodes could be required? HUAWEI TECHNOLOGIES - Interworking between SWEDEN high/low AB bands? Initial access? Huawei Location Confidentiality of functionalities? Costs&EE per node? 5 - What is the impact on latency from the various deployment topologies? Latency requirements/service? HAN LEAN LEAN+HAN ~3GPP ~30GHz Sub6GHz BH->Macro BH - Mesh FH UDN s Serving a single household self-deployed mcpe M-MIMO BTS mmw-bts Serving the whole building multi-household pole-deployed LEAN: LoS-Ensurance Aggregation Node HAN: Hotspot Access Node UDN: Ultra-Dense network Node

6 Cost vs Performance TCO-Analysis Solution Alternatives - HotAreas Main Scenario Parameter Variations: BTS -- access side: Sub-6GHz, bandwidth MHz AntConfig: M-MIMO BTS -- backhaul side: ~30GHz, bandwidth TBD AntConfig: 32,64, 128(?) -- macro backhaul side: ~30GHz, bandwidth TBD AntConfig: 32, 64, 128(?) -- fronthaul side: ~30GHz, bandwidth TBD AntConfig: 32, 64, 128(?) UDN fronthaul & FH-mesh side: ~30GHz, bandwidth TBD AntConfig: 32, 64, 128(?) UDN -- access side: ~3.5-6 GHz, bandwidth MHz x Y (Y=1-5?)) AntConfig: 1,2,4,8 ~30GHz, bandwidth MHz - Bands: =10.85GHz; more later on - Ch. BW 200MHz - EIRP s/100mhz e t c AntConfig: 32, 64 UE (or a CPE for WTTx or on a moving vehicle, e.g.): ~3.5-6GHz, bandwidth MHz (100MHz x Y (Y=1-5?)) AntConfig: 1,2,4,8 (8, 16) ~30GHz, bandwidth 100MHz x Y (Y=1-10?) AntConfig: 8,16,32 (32, 64) ~30GHz Sub6GHz ~30GHz Must HUAWEI ensure TECHNOLOGIES that node CO., costs LTD. and power Huawei Confidential consumption numbers Page 6 are acceptable UDN UDN UDN ~3GPP FH * sub3ghz-macro for indoor coverage not shown in this picture 1 BH - Mesh BH->Macro BH - Mesh FH UDN s 2 UDN: Ultra Dense network Node : UDN Aggregation Node Indoor Penetration* Aggregating a second sub-set of UDN s (not shown)

7 RAN/BTS Evolution Strategy towards 5G Networks Secure WideArea- and Outdoor-to-Indoor Coverage Add WideArea Capacity Densify the network grid Secure 5G Performance Baseline as absolute reference: 5B3M LTE R10 2x2 MIMO M-MIMO on existing site grid Introduction of street-level Low Power Nodes (LPNs) wirelessly backhauled to existing macro sites Support orthogonal requirements w r t: latency, peak rates, mobility, power consumption and TCO. Introduction of UDNs(?) Final target: to enable a Cost-per-bit and Energy Consumption comparison across HUAWEI TECHNOLOGIES different CO., RAN LTD. deployment Huawei topology- Confidential and node Page realization 7 alternatives

8 ISD=198m ISD=131m Serving ~10x more data data to ~3x more users seems possible without significantly increasing RAN energy consumption. HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 8 The cost for this will depend on how the various required nodes are realized; initial/basic assumptions are being developed in a full TCO-analysis.

9 High level RAN/BTS functionality/solution requirements over time 3GPP is right now about to (start) defining 5G and its relation(s) to 4G Predominantly LTE Keeping Macro grid Adding Spectrum Carrier Aggregation Layered RAN - Access Convergence and Access Technology specific layers Service Oriented RAN: CP/UP split and Slicing Massive MIMO Fast sleep/wake up features Dual/Multi connectivity Multi-operator shared HotSpots 3GPP specs harmonization for MMIMO and DMIMO Smart self-backhauling mmw access and (self-) backhaul Dual/Multi Connectivity for mmw opportunistic access Multi-operator shared HotArea (UDN) deployments DMIMO and MMIMO UDNs with high mobility support HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 9

10 Thank you Copyright 2012 Huawei Technologies Co., Ltd. All Rights Reserved. The information in this document may contain predictive statements including, without limitation, statements regarding the future financial and operating results, future product portfolio, new technology, etc. There are a number of factors that could cause actual results and developments to differ materially from those expressed or implied in the predictive statements. Therefore, such information is provided for reference purpose only and constitutes neither an offer nor an acceptance. Huawei may change the information at any time without notice.